Evaluation of HIV-DNA and residual viremia levels through week 96 in HIV-infected individuals who continue a two-drug or switch to a three-drug integrase strand transfer inhibitor-based regimen.

To investigate HIV-DNA and residual viremia (RV) levels over 96 weeks (W96) in virologically-suppressed HIV-1-infected individuals enrolled in the Be-OnE Study. Individuals were randomised to continue a two-drug regimen with dolutegravir (DTG) plus one reverse transcriptase inhibitor (RTI) or to switch to elvitegravir/cobicistat/emtricitabine/tenofovir-alafenamide (E/C/F/TAF). Total HIV-DNA and RV were evaluated at baseline, W48 and W96 using droplet digital polymerase chain reaction (ddPCR) technique. Potential relationships between viro-immunological parameters and between/within arms were also assessed. Median (interquartile range [IQR]) HIV-DNA was 2247 (767-4268), 1587 (556-3543) and 1076 (512-2345) copies/10 In virologically-suppressed individuals, there was a small reduction in HIV-DNA and HIV-RNA levels from baseline to W96 in individuals who switched to the E/C/F/TAF arm compared with those who remained on DTG + 1 RTI. However, there were no significant differences between the two arms in the changes in HIV-DNA and HIV-RNA over time.

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